Senior Data Engineer - financial industry (f/m/x)

Sii Poland; Kraków; On-site; PLN 260,000 - 360,000; Full time

Benefits offered by this job

Great colleagues

Centre of internal trainings

Profit sharing

Medical care

Open management

Job summary

Sii Poland is looking for a Senior Big Data Developer to join our Kraków team to build a modern data platform using Databricks and the Microsoft Azure ecosystem. You will design and develop scalable data solutions, implement and optimize ETL/ELT pipelines, and integrate data from multiple sources including Delta Tables and Azure Event Hub.

The role requires 5+ years in data engineering, strong Python and PySpark expertise, and advanced English; you will collaborate with experts, use AI-powered

Qualifications

• 5+ years in Data Engineering or Big Data roles.
• Hands-on with Python and PySpark.
• Experience with Databricks and Delta Tables.
• Azure data services experience.

Responsibilities

• Design and develop data solutions using Databricks and PySpark.
• Build and optimize batch and streaming ETL/ELT pipelines.
• Integrate data from multiple sources including Delta Tables and Azure services.
• Develop and maintain medallion architecture using Delta Tables.

Skills

Databricks

Python

PySpark

Delta Tables

Azure Data Factory

Azure Event Hub

ETL/ELT pipelines

AI-assisted development

English

Elasticsearch

Tools

Elasticsearch

Job description

We are looking for a Senior Big Data Developer to join our team in building a modern data platform using Databricks and the Microsoft Azure ecosystem. In this role, you will be responsible for designing and developing scalable data solutions, implementing and optimizing ETL/ELT pipelines, and integrating data from multiple sources. If you are passionate about modern data engineering, AI-assisted development, and creating impactful data solutions, don\'t hesitate to apply!

Your tasks

• Design and develop data solutions using Databricks, Python, and PySpark
• Build and optimize ETL/ELT pipelines for batch and streaming data processing
• Implement and maintain medallion architecture using Delta Tables
• Integrate data from multiple sources, including SFTP files, Delta Tables, and Azure Event Hub
• Work with Azure services such as Azure Data Factory to support end-to-end data workflows
• Utilize AI-powered development tools to improve code quality, testing, documentation, and productivity

Requirements

• At least 5 years of experience in a Data Engineer, Big Data Engineer, or similar role
• Strong hands-on experience with Python and PySpark
• Proven experience with Databricks, Delta Tables, and modern data architectures
• Practical knowledge of the Microsoft Azure ecosystem, including Azure Data Factory and Azure Event Hub
• Experience building and maintaining scalable ETL/ELT pipelines
• Advanced level of English
• Interest in modern technologies and experience using AI-assisted development tools in everyday work

Nice to have

• Familiarity with Elasticsearch
• Strong analytical skills and a proactive approach to solving complex data-related challenges

Job no. JOB-VKXJB

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care